// Copyright 2023 Google LLC

//

// Licensed under the Apache License, Version 2.0 (the "License");

// you may not use this file except in compliance with the License.

// You may obtain a copy of the License at

//

// https://www.apache.org/licenses/LICENSE-2.0

//

// Unless required by applicable law or agreed to in writing, software

// distributed under the License is distributed on an "AS IS" BASIS,

// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

// See the License for the specific language governing permissions and

// limitations under the License.

package dev.cel.bundle;

import dev.cel.checker.CelCheckerLegacyImpl;

import dev.cel.common.CelOptions;

import dev.cel.compiler.CelCompiler;

import dev.cel.compiler.CelCompilerImpl;

import dev.cel.parser.CelParserImpl;

import dev.cel.runtime.CelRuntime;

import dev.cel.runtime.CelRuntimeLegacyImpl;

/** Helper class to configure the entire CEL stack in a common interface. */

public final class CelFactory {

private CelFactory() {}

/**

* Creates a builder for configuring CEL using current parser for the parse, type-check, and eval

* of expressions.

*

* <p>Note, the {@link CelOptions#current}, standard CEL function libraries, and linked message

* evaluation are enabled by default.

*/

public static CelBuilder standardCelBuilder() {

return CelImpl.newBuilder(

CelCompilerImpl.newBuilder(

CelParserImpl.newBuilder(), CelCheckerLegacyImpl.newBuilder()),

CelRuntimeLegacyImpl.newBuilder())

.setOptions(CelOptions.current().build())

.setStandardEnvironmentEnabled(true);

}

/** Combines a prebuilt {@link CelCompiler} and {@link CelRuntime} into {@link Cel}. */

public static Cel combine(CelCompiler celCompiler, CelRuntime celRuntime) {

return CelImpl.combine(celCompiler, celRuntime);

}

}